Mummy, rectangular and backpacking sleeping bags.
Sleeping bag temperature rating and insulation type determine warmth and packability. A 20-degree Fahrenheit rated mummy bag with 650-fill goose down compresses to a smaller pack size than a 20-degree synthetic bag of equivalent warmth, but loses insulating ability when wet. The EN 13537 standard provides a regulated comfort and lower-limit temperature rating for comparison across brands. This section covers sleeping bags by temperature rating, insulation type, shape and packed weight.
6 guides in this section
A backpacking sleeping bag prioritizes weight and compressed pack size over maximum comfort, fitting inside a hiking pack alongside a tent and gear pad for trail transport. Backpacking bags typically weigh 2 to 4 pounds and compress to 5 to 8 inches in diameter.
4 picks · 5 sourcesUpdated September 30, 2026
A double sleeping bag is a wide sleeping bag designed for two people sleeping side by side, available in queen or king widths that accommodate two adults with room to shift positions during sleep. Double sleeping bags are heavier than two individual bags but simpler to pack and provide shared warmth between occupants.
4 picks · 5 sourcesUpdated September 30, 2026
A kids sleeping bag is sized for children ages 3 to 12 and provides appropriate warmth and fit for smaller bodies that cannot fill an adult sleeping bag efficiently. Children lose heat faster than adults and require sleeping bags rated 5 to 10 degrees warmer than adults camping in the same conditions.
4 picks · 5 sourcesUpdated September 30, 2026
A mummy sleeping bag tapers from the shoulders to the feet, following the body shape to minimize the interior air volume the body must heat. The narrower profile makes mummy bags lighter and more thermally efficient than rectangular bags at the same temperature rating.
4 picks · 5 sourcesUpdated September 30, 2026
A cold weather sleeping bag rated at 0 to 20 degrees Fahrenheit provides insulation for winter camping, late fall and early spring conditions where standard three-season bags do not provide enough warmth for safe overnight sleep.
4 picks · 5 sourcesUpdated September 30, 2026
A sleeping bag insulates a sleeper from ground cold and ambient temperature during outdoor camping, backpacking and emergency use. Temperature ratings indicate the lowest temperature at which a healthy adult can sleep without being dangerously cold when properly dressed.
4 picks · 5 sourcesUpdated September 30, 2026
